Update README file to include git retrieval

6 jobs for !1978 with readme1 in 15 minutes and 7 seconds (queued for 1 second)
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Status Job ID Name Coverage
  Build
passed #19799
macos
build_macos

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passed #19800
ubuntu1604
build_ubuntu1604

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ubuntu1804
build_ubuntu1804

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passed #19802
ubuntu1804-gcc8
build_ubuntu1804-gcc8

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passed #19803
vc191x
build_vc191x

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vc192x
build_vc192x

00:14:06